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08-25-2017, 12:09 PM
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#1 |
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Registered User
Join Date: Jun 2016
Location: Stevenson Ranch, CA
Posts: 62
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Random Pig Tail any clue what it's for?
1972 C10 402
This electrical pigtail runs off the main wire harness right by the firewall. I am not original owner and can't figure out what it's for any help would be appreciated.
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Cesar Diaz 1972 C10 Big Block 402 Cheyenne |
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08-25-2017, 12:32 PM
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#2 |
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Msgt USAF Ret
  
Join Date: Jan 2005
Location: Kalamazoo, Michigan
Posts: 8,718
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Re: Random Pig Tail any clue what it's for?
Most likely it is a plug for one of the TCS relays used in late 70 through 72 trucks as part of the Emissions control system that most guys disconnected as soon as the trucks cleared the showroom floor.
TCS= transmission controlled spark. Here's a pic of the relays.
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VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative. |
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